Saint David (Welsh: Dewi Sant, Latin: Davidus; c. 500 – c. 589) was a Welsh bishop of Mynyw (now St Davids) during the 6th century; he was later regarded as a saint. He is the patron saint of Wales. David was a native of Wales, and a relatively large amount of information is known about his life. However, his birth date is uncertain: suggestions range from 462 to 512. He is traditionally believed to be the son of Saint Non and the grandson of Ceredig ap Cunedda, king of Ceredigion. The Welsh annals placed his death 569 years after the birth of Christ, but Phillimore's dating revised this to 601.
St David's Day is celebrated in Wales on 1 March, in honour of St David (Dewi Sant), the patron saint of Wales. St David (Dewi Sant was a Celtic monk, abbot and bishop, who lived in the sixth century. He spread the word of Christianity across Wales. The most famous story about Saint David tells how he was preaching to a huge crowd and the ground is said to have risen up, so that he was standing on a hill and everyone had a better chance of hearing him.